Figure. 3D image fusion combining information from CT coronary angiography, CT derived FFR, CMR stress perfusion imaging, and CMR late gadolinium enhancement. Data from a 59-year old male patient with severe three-vessel disease are shown. Conventional 2D images of CT and CMR datasets (a: CMR stress perfusion, b: CMR late gadolinium enhancement) were post-processed, co-registered, color-coded, and rendered in a three-dimensional fashion. In CT coronary angiography, a subtotal proximal stenosis of the right coronary artery was found (c: 3D rendering, also note the associated drop of CT derived FFR value), which resulted in an inferior/inferolateral perfusion deficit (arrowheads in a and d) as well as severe, partly transmural scar (asterisk in b and d).